Home / 687,981.58-949,864.24-446,951.10

Finding the Fourth Proportional to 687,981.58, 949,864.24 and 446,951.10

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Solution

The fourth proportional to 687,981.58, 949,864.24 and 446,951.10 is: 617,084.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,981.58 : 949,864.24 = 446,951.10 : x
  2. Step 2: Convert to fraction form
    687,981.58/949,864.24 = 446,951.10/x
  3. Step 3: Cross multiply
    687,981.58x = 949,864.24 × 446,951.10
  4. Step 4: Simplify right side
    687,981.58x = 424,542,866,918.66
  5. Step 5: Solve for x
    x = 424,542,866,918.66/687,981.58
  6. Step 6: Final answer
    x = 617,084.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.